package com.acc.filter;
/**
 * @author 朱春阳
 */
import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SetCharacterEncodingFilter implements Filter{
	
	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		// TODO Auto-generated method stub
		
		HttpServletRequest httpRequest = null;
		HttpServletResponse httpResponse = null;
		if(request instanceof HttpServletRequest) {
			httpRequest = (HttpServletRequest)request;
		}
		
		httpRequest.setCharacterEncoding("utf-8");
		
		if(response instanceof HttpServletResponse) {
			httpResponse = (HttpServletResponse)response;
		}
		
		httpResponse.setCharacterEncoding("utf-8");
		chain.doFilter(request, response);
		
	}

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		
	}

}
